Automatic weather strip for doors



Dec. 16, 1930. I J. w. CARTER 1,785,672

AUTOMATIC WEATHER STRIP FOR DOORS Filed Aug. 26. 1929 o I V 36 2 W" 32 f E I? II III\ E 7 49- fl a MA -"l 3a a ;fifi ade H 2; 7H fi l9 l9 3, 29) 20 ///II W 4 (7 1/93. I W m 29 1:; 96

I4 24 y J17. Carte/r INVENTOR WITNESS: ATTORNEY Patented Dec. 16, 1930 PATENT OFFICE JOHN. W. CARTER, OF NEILLSVILLE, WISCONSIN apromn'rlc WEATHER s'rmr ron noons Application filed August 26,1929. seriaino. 388,525.

The invention relates tethe broad class of builders hardware, particularly to weather excluding devices, and has for its general ob-' ject the provision of; a novel weather strip device adapted to be mounted upon the bottom portion of a door and acting automatically to contact with the threshold when the door is closed for the purpose of providing-a weatherproof joint which will exclude cold wind or rain, the device being also of such construction that when the door is opened theweather strip willbe automatically raisedto inoperative or inefiective position out of'the way.

'An importantobject ofthe invention isto provide an automatic weather strip device of this character which is'spring operated in onedirection and moved in the other direc- 'tion' by engagement of an operating element 120 'against'thedoor jamb; 1.

Another object is to provide a mechanism of this character which is entirely housed upon oneside of the door and which will therefore be concealed from view so as not to detract in'any way from the ornamental appearance of the door itself. 7 p y "Ana'dditional object is to provide a device of this character which will-be simple and inexpensive toniake, easy to install or assemble,

positive in action, eificient and durable in ing, in which c Figure-1 is anelevatlon of a door in open position, the view" being taken transversely of the threshold and showing the weather strip device; in withdrawn or ineffective p0- sitionn- Figure 2 is a similar view with the cover removed.

Figure 3 is an elevation of the door and its jamb with the cover removed and showing the weather strip device in lowered or operative position.

Figure 4 is a vertical cross section taken 0 the line 44 of Figure 3.

Figure 5 is a similar view showing the weather strip device withdrawn or in inoperative position.

Figure 6 is a detail perspective view of one of the operating brackets.

Figure 7 is a detail elevation looking at one end of the weather strip with the operating element thereon.

sents the jamb to which the door is hinged at U, D indicates the opposite jamb-and E the threshold. In carrying out the invention I cut away the threshold E as indicated at 10 to provide an abutment shoulder 11 and se cure upon the threshold a metal strip 12 so as to have a clearly defined edge against which abuts the weather strips to be described.

The weather strip itself is indicated by the numeral 13 and preferably comprises an elongated metallic plate bearing on its face to- Ward the door a'felt or other yieldable liner 14;. The recess or cut away portion of the threshold and the weather strip are so related orlocated with respect to each other that the felt liner 14 is adapted to engage upon the top of the metal strip 12 while the metal strip or plate 13 engages against the edge thereof. Securedupon the side of the door are suitable guides 15 thru which is longitudinally slidably mounted an operating rod 16 formed with a plurality of holes 17 and 18. T his rod is positioned so as to engage at one end against the door jamb B when the door A is moved into closed position as shown in Figure 00 3 Pivotally mounted upon the-door, as by means of screws 19 or the likeare bracket members 20 shown indetail in Figure 6, each of these bracket members being here represented as formed from a single length of wire bent to define arms 21 and 22 connected by a convolution or coil 23, the arm 22 terminating in a reflectedly or reversely bent portion defining a loop 24. The convolutions 23 of these bracket members are engaged upon the screws 19 so as to be plvoted, and the arm 21 I passed thru the holes in the rod 16. Suitis r.

' ed upper ends 26. The loop 2d of the brackets ably secured upon the strip or'plate13 are brackets 25, which project above the upper edge thereof and which have laterally extendare engaged upon the upper ends of the bracket 25 and are prevented from accidental means of the disengagement therefrom lateral extensions 26.

- Suitably mounted, as at27, upon the door I is a spring device 28 which may be of right angular shape including an arm 29 extending thru the hole 18 in the rod 16 and also including an arm 30 having a curved end engaging against a stop 31 on the door. i

Inorder to protect the mechanism and to conceal it from view I preferably provide a cover orhousing 32 which may be conveniently formed of sheet metal finished in as shown in the drawing, it will be seen that under ordinary circumstances the spring 28 will operate to urge the rod 16 toward the jamb B. However, when the rod is urged in this direction it is apparent that themembers 20 which are in effect bell cranks will 7 be shifted in one direction so as to exert an upward pull upon the brackets 25, thereby holding the Weatherstrip 13 in its elevated position outof engagement with the threshold or door sill. There is consequently nothing at this time to interfere with the partial or entire closing movement of the door. However, when the door is swung into its closed position the end of therod 16 nearest the jamb B will engage against this jamb directly or against an adjustable abutment 36 thereon, the result being that the rod 16, will be. shifted longitudinally-in the opposite direction,lplacing the spring28 under tension andat the. same time moving the angle bracket members or bell cranks 20 in such direction that the arms 22 thereof 00- operating with the brackets 25 force the latterand consequently the weather strip 13,

with its felt liner 14, downwardly into engagement with the threshold or door sill at the cut awayportion thereof, the metal strip or plate 13 of the weather strip engaging against the shoulder 11 and the felt liner 1 L engaging upon the top of the metal plate 12. 7

At such a time it is quite apparent that the weather strip will constitute an efiectual seal for excluding drafts, dust, water or the like.

The principal consideration ia'of course, the

exclusion of cold air in winter time and it is readily apparent that the device will function in the manner described and for-the purpose set forth. When the door is subsequently opened the tension of the spring 28 will operate to return the -rod16 and the other parts to the initialor normal position with I the weather strip elevated out of engagement with the door ,sill or threshold. It is really believed thattheconstruction, operation and advantages will be apparentfrom the fore- 7 going without-further explanation. 7

While I have shown and described the preferred embodiment of the invention; it should be understood that I reserve the right to make all such changes in the details-of construction and the arrangement and combination of parts as will not depart from the spirit of the invention or the scope of the subjoined claim.

Having thus described the invention, I claim The combination'with a swinging door and its frame, including a door sill-and a wear plate upon' the upper'side ofthe sill, and which sillis recessed at its'upper side in rear of said plate, of a rod mounted transversely upon the doorat the inner side of said door, a weather strip comprising a plate of metal and a facing of packing material 4 upon one side of said plate, arms secured to the outer side of saidplate and extending over the upper edge thereof and thence upwardly and providedat their upper ends with inwardlydirectedright angular extensions to engage the surface of the door against which the facing strip is disposed, the facing strip beingso positioned with respect to the lower edge of the plate that'the' lower edge of the strip will seat upon the upper side of the wear plate and the lower edge of the said weather strip plate will project below the loweredge of the facing strip 'to seat in the recess in the sill of the door frame, resilient members mounted for rock--; mg movement between their ends upon the outer side of the door, themembers each having an upstanding arm and the rod having openings into which the ends of the arms project, each of said members further comprising an arm extending at anangle to the first mentioned arm 7 and provided with a loop to slidably engage the upstanding portion of the respective arm upon the plate and beneath the terminal extension of said armwhereby to'support the plate in elevated position, and a coiled spring upon the door having one end engaging the said'rod and its other end fixed with respect to the door and holding the rod shifted in a direction to maintain the weather strip unit normally in an elevated position,'and an abutment upon the jamb of the door frame to which the door is hinged, positioned to be engaged "by one end of the said rod when the door is swung to closed position whereby to shift the rod against the tension of said spring and effect lowering of the weather strip unit into engagement with the sill.

In testimony whereof I aflix my signature.

JOHN W. CARTER. 

